Abstract
A convenient charging mechanism will be of great help in dispersal of Electric Vehicles more widely. The concept of Wireless transfer of electrical energy will make this possible. The feasibility of wireless power transfer for Electric Vehicles by electromagnetic resonance coupling is investigated in this paper. Using electromagnetic resonance coupling, large amount of power can be transmitted over large air gaps. The experiment is carried out on small sized antennas that can be equipped at the bottom of a vehicle. The efficiency characteristics of power transmitted wirelessly are analyzed by varying - frequency of power, gap between receiving and transmitting coils and power to be transmitted. Power transmission efficiencies at resonant frequencies are investigated. Wireless charging mechanism will make Electric Vehicles more user friendly and also reduce Carbon emissions. The feasibility of wireless power transfer with large air gaps and high efficiency by small sized antennas is proposed and analyzed in this paper.
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